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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script type="text/javascript">
        //Fetch响应结果的数据格式

        fetch('http://localhost:3000/json').then(function(data) {
            // return data.json();
            return data.text();
        }).then(function(data) {
            // console.log(data.uname)
            // console.log(typeof data)
            var obj = JSON.parse(data);
            console.log(obj.uname, obj.age, obj.gender)
        })
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